Humidity sensors based on nanobeads of conjugated polymers, i.e., polyphenylacetylene (PPA) and poly[phenylacetylene-(co-2-hydroxyethyl methacrylate] P(PAMEMA), prepared by modified emulsion polymerization technique, have been developed using resistive type and quartz crystal microbalance (QCM) devices. The investigations on the electrical response of PPA and P(PA/HEMA) nanobeads were performed and resistive humidity sensors based on ordered arrays of these nanostructured polymeric materials showed fast and reproducible current intensity variations in the range of relative humidity RH 5-90%. Polymeric nanostructured films deposited on the quartz electrode of QCM showed a linear sensitivity of 0.024 Hz/ppmv and short response time. Copyright © 2007 American Scientific Publishers All rights reserved.
Venditti, I., Bearzotti, A., Macagnano, A., Russo, M.V. (2007). Enhanced sensitivity of polyphenylacetylene and poly[phenylacetylene-(Co-2-hydroxyethyl methacrylate)] nanobeads to humidity. SENSOR LETTERS, 5(3-4), 528-532 [10.1166/sl.2007.227].
Enhanced sensitivity of polyphenylacetylene and poly[phenylacetylene-(Co-2-hydroxyethyl methacrylate)] nanobeads to humidity
Venditti I.Investigation
;
2007-01-01
Abstract
Humidity sensors based on nanobeads of conjugated polymers, i.e., polyphenylacetylene (PPA) and poly[phenylacetylene-(co-2-hydroxyethyl methacrylate] P(PAMEMA), prepared by modified emulsion polymerization technique, have been developed using resistive type and quartz crystal microbalance (QCM) devices. The investigations on the electrical response of PPA and P(PA/HEMA) nanobeads were performed and resistive humidity sensors based on ordered arrays of these nanostructured polymeric materials showed fast and reproducible current intensity variations in the range of relative humidity RH 5-90%. Polymeric nanostructured films deposited on the quartz electrode of QCM showed a linear sensitivity of 0.024 Hz/ppmv and short response time. Copyright © 2007 American Scientific Publishers All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
